Yup Eamon, SATA plugs. The original drive, the one I replaced ,is hooked up to one of four SATA plugs marked PD, it also has a second smaller plug with a yellow band on it. There are two unused SATA plugs on the harness marked PA and PE, the Fourth one is marked PB, and is plugged into the hard drive, which also has a smaller plug hooked to it as well. I tried using the one marked PE, but NG. Do you think that a second plug would be needed to plug into the mother ship, like the other two drives?
Thanks.